IEC61850 CID ICD Files

A

Thread Starter

Alex_38

Hi Gents,

A question about IEC61850 communicating IEDs and their CID / ICD files

I have in mind that one would describe the full capabilities of an IED in term of possible data map, and the other would be a configured data map with selected logical nodes only. But I'm not sure at all about the exact differences between CID and ICD files?

Also,
Usually which part would be responsible for providing the CID and/or ICD files:

- Switchgear / IED (protection relay) vendor?
- Automation system (Scada) vendor?
Assuming they are different vendors, and there is hence an interface between them.

Thanks for your help,
Regards,
 
R

Ralph Mackiewicz

First off, there is a significant difference between CID (configured IED description) and ICD (IED capability description) files in terms of how they are used and what information they contain. Here is a simplified description of how Substation Configuration Language (SCL) files can be used per IEC 61850-6.

ICD files contain a description of the capabilities of a device. It is like a template that has a generic description of all the functions and objects that can be supported by a given device. The ICD is produced by the developer/manufacturer.

The ICD file is used as input by a System Configuration Tool(SCT)that the designer uses to build a Substation Configuration Description (SCD) file that contains the design for the substation. The SCD includes all the devices needed for that system. The SCT can be used to export an Instantiated IED Description (IID) file from the SCD that contains a description of the functions and objects that an IED needs for that specific system. The IID is typically a subset of the ICD in terms of functions and objects, but also includes configuration information related to the system design (like report and GOOSE subscriptions).

Then, an IED Configuration Tool (ICT) can use the IID along with device specific information (which could include mapping information) to create a Configured IED Description (CID) file which is used by the device to configure itself.

The manufacturer produces ICD files.

The substation engineer uses an SCT to produce SCD files that uses ICDs as imports and generates IIDs as exports.

The IED engineer uses an ICT to produce CID files using IID as imports.

There is a LinkedIn Group for IEC 61850 that is very active: https://www.linkedin.com/groups/119621

Ralph Mackiewicz
SISCO, Inc.
 
Hello Ralph,

Thnx for your complete answer.

Do you know if the standard (IEC) specifies precisely who would be responsible between the Scada system vendor and the IED-switchgear vendor (in case they are different vendors), to make the CIDs and/or configure the ICT?

I was unable to find that information in the IEC 61850 series,
but perhaps it is not defined at that level.

Regards,
Axel
 
First off, there is a significant difference between CID (configured IED description) and ICD (IED capability description) files in terms of how they are used and what information they contain. Here is a simplified description of how Substation Configuration Language (SCL) files can be used per IEC 61850-6.

ICD files contain a description of the capabilities of a device. It is like a template that has a generic description of all the functions and objects that can be supported by a given device. The ICD is produced by the developer/manufacturer.

The ICD file is used as input by a System Configuration Tool(SCT)that the designer uses to build a Substation Configuration Description (SCD) file that contains the design for the substation. The SCD includes all the devices needed for that system. The SCT can be used to export an Instantiated IED Description (IID) file from the SCD that contains a description of the functions and objects that an IED needs for that specific system. The IID is typically a subset of the ICD in terms of functions and objects, but also includes configuration information related to the system design (like report and GOOSE subscriptions).

Then, an IED Configuration Tool (ICT) can use the IID along with device specific information (which could include mapping information) to create a Configured IED Description (CID) file which is used by the device to configure itself.

The manufacturer produces ICD files.

The substation engineer uses an SCT to produce SCD files that uses ICDs as imports and generates IIDs as exports.

The IED engineer uses an ICT to produce CID files using IID as imports.

There is a LinkedIn Group for IEC 61850 that is very active: https://www.linkedin.com/groups/119621

Ralph Mackiewicz
SISCO, Inc.

Please, is SCT a general software or a company specific ?
 
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